The aim of this graduate thesis is to discover how students spend their leisure. The primary goal of this research is to discover what students do in their leisure time and to what extent they engage in kinesiological activities. Secondary objective is to compare engaging in kinesiological activities by gender. For the purpose of this research, a sample of two 3rd graders from Elementary School Brestje was included. 44 students participated, of which 25 were females and 19 males. Using the questionnaire method, we discover about their active and passive activities in their free time. The largest percentage of children spend their free time actively and 31.82% play sports. Also, a large percentage of children spend their free time passively and 20.45% play games on a computer or mobile phone. Students' awareness of the importance of physical exercise is emphasized because all students believe that movement and sports are important for a person, and as many as 90, 91% of students plan to engage in some activity in the future. Differences in the way leisure time is spent between boys and girls are visible. Boys usually spend their free time playing games on the computer or mobile phone, while girls spend time with family and playing with friends. Also, the difference in engaging in kinesiological activity by gender was emphasized, and we conclude that there is a connection regarding gender and the choice of sport. Boys have tendency to play football while girls have tendency toward dance. Parents, teachers and other professional staff should encourage children at an early age to engage in various physical activities in order to acquire the habit of exercise and so that modern times do not direct them to a sedentary way of spending free time.